/**
*
* jquery.sparkline.js
*
* v2.1.2
* (c) Splunk, Inc
* Contact: Gareth Watts (gareth@splunk.com)
* http://omnipotent.net/jquery.sparkline/
*
* Generates inline sparkline charts from data supplied either to the method
* or inline in HTML
*
* Compatible with Internet Explorer 6.0+ and modern browsers equipped with the canvas tag
* (Firefox 2.0+, Safari, Opera, etc)
*
* License: New BSD License
*
* Copyright (c) 2012, Splunk Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
*     * Redistributions of source code must retain the above copyright notice,
*       this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright notice,
*       this list of conditions and the following disclaimer in the documentation
*       and/or other materials provided with the distribution.
*     * Neither the name of Splunk Inc nor the names of its contributors may
*       be used to endorse or promote products derived from this software without
*       specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* Usage:
*  $(selector).sparkline(values, options)
*
* If values is undefined or set to 'html' then the data values are read from the specified tag:
*   <p>Sparkline: <span class="sparkline">1,4,6,6,8,5,3,5</span></p>
*   $('.sparkline').sparkline();
* There must be no spaces in the enclosed data set
*
* Otherwise values must be an array of numbers or null values
*    <p>Sparkline: <span id="sparkline1">This text replaced if the browser is compatible</span></p>
*    $('#sparkline1').sparkline([1,4,6,6,8,5,3,5])
*    $('#sparkline2').sparkline([1,4,6,null,null,5,3,5])
*
* Values can also be specified in an HTML comment, or as a values attribute:
*    <p>Sparkline: <span class="sparkline"><!--1,4,6,6,8,5,3,5 --></span></p>
*    <p>Sparkline: <span class="sparkline" values="1,4,6,6,8,5,3,5"></span></p>
*    $('.sparkline').sparkline();
*
* For line charts, x values can also be specified:
*   <p>Sparkline: <span class="sparkline">1:1,2.7:4,3.4:6,5:6,6:8,8.7:5,9:3,10:5</span></p>
*    $('#sparkline1').sparkline([ [1,1], [2.7,4], [3.4,6], [5,6], [6,8], [8.7,5], [9,3], [10,5] ])
*
* By default, options should be passed in as teh second argument to the sparkline function:
*   $('.sparkline').sparkline([1,2,3,4], {type: 'bar'})
*
* Options can also be set by passing them on the tag itself.  This feature is disabled by default though
* as there's a slight performance overhead:
*   $('.sparkline').sparkline([1,2,3,4], {enableTagOptions: true})
*   <p>Sparkline: <span class="sparkline" sparkType="bar" sparkBarColor="red">loading</span></p>
* Prefix all options supplied as tag attribute with "spark" (configurable by setting tagOptionPrefix)
*
* Supported options:
*   lineColor - Color of the line used for the chart
*   fillColor - Color used to fill in the chart - Set to '' or false for a transparent chart
*   width - Width of the chart - Defaults to 3 times the number of values in pixels
*   height - Height of the chart - Defaults to the height of the containing element
*   chartRangeMin - Specify the minimum value to use for the Y range of the chart - Defaults to the minimum value supplied
*   chartRangeMax - Specify the maximum value to use for the Y range of the chart - Defaults to the maximum value supplied
*   chartRangeClip - Clip out of range values to the max/min specified by chartRangeMin and chartRangeMax
*   chartRangeMinX - Specify the minimum value to use for the X range of the chart - Defaults to the minimum value supplied
*   chartRangeMaxX - Specify the maximum value to use for the X range of the chart - Defaults to the maximum value supplied
*   composite - If true then don't erase any existing chart attached to the tag, but draw
*           another chart over the top - Note that width and height are ignored if an
*           existing chart is detected.
*   tagValuesAttribute - Name of tag attribute to check for data values - Defaults to 'values'
*   enableTagOptions - Whether to check tags for sparkline options
*   tagOptionPrefix - Prefix used for options supplied as tag attributes - Defaults to 'spark'
*   disableHiddenCheck - If set to true, then the plugin will assume that charts will never be drawn into a
*           hidden dom element, avoding a browser reflow
*   disableInteraction - If set to true then all mouseover/click interaction behaviour will be disabled,
*       making the plugin perform much like it did in 1.x
*   disableTooltips - If set to true then tooltips will be disabled - Defaults to false (tooltips enabled)
*   disableHighlight - If set to true then highlighting of selected chart elements on mouseover will be disabled
*       defaults to false (highlights enabled)
*   highlightLighten - Factor to lighten/darken highlighted chart values by - Defaults to 1.4 for a 40% increase
*   tooltipContainer - Specify which DOM element the tooltip should be rendered into - defaults to document.body
*   tooltipClassname - Optional CSS classname to apply to tooltips - If not specified then a default style will be applied
*   tooltipOffsetX - How many pixels away from the mouse pointer to render the tooltip on the X axis
*   tooltipOffsetY - How many pixels away from the mouse pointer to render the tooltip on the r axis
*   tooltipFormatter  - Optional callback that allows you to override the HTML displayed in the tooltip
*       callback is given arguments of (sparkline, options, fields)
*   tooltipChartTitle - If specified then the tooltip uses the string specified by this setting as a title
*   tooltipFormat - A format string or SPFormat object  (or an array thereof for multiple entries)
*       to control the format of the tooltip
*   tooltipPrefix - A string to prepend to each field displayed in a tooltip
*   tooltipSuffix - A string to append to each field displayed in a tooltip
*   tooltipSkipNull - If true then null values will not have a tooltip displayed (defaults to true)
*   tooltipValueLookups - An object or range map to map field values to tooltip strings
*       (eg. to map -1 to "Lost", 0 to "Draw", and 1 to "Win")
*   numberFormatter - Optional callback for formatting numbers in tooltips
*   numberDigitGroupSep - Character to use for group separator in numbers "1,234" - Defaults to ","
*   numberDecimalMark - Character to use for the decimal point when formatting numbers - Defaults to "."
*   numberDigitGroupCount - Number of digits between group separator - Defaults to 3
*
* There are 7 types of sparkline, selected by supplying a "type" option of 'line' (default),
* 'bar', 'tristate', 'bullet', 'discrete', 'pie' or 'box'
*    line - Line chart.  Options:
*       spotColor - Set to '' to not end each line in a circular spot
*       minSpotColor - If set, color of spot at minimum value
*       maxSpotColor - If set, color of spot at maximum value
*       spotRadius - Radius in pixels
*       lineWidth - Width of line in pixels
*       normalRangeMin
*       normalRangeMax - If set draws a filled horizontal bar between these two values marking the "normal"
*                      or expected range of values
*       normalRangeColor - Color to use for the above bar
*       drawNormalOnTop - Draw the normal range above the chart fill color if true
*       defaultPixelsPerValue - Defaults to 3 pixels of width for each value in the chart
*       highlightSpotColor - The color to use for drawing a highlight spot on mouseover - Set to null to disable
*       highlightLineColor - The color to use for drawing a highlight line on mouseover - Set to null to disable
*       valueSpots - Specify which points to draw spots on, and in which color.  Accepts a range map
*
*   bar - Bar chart.  Options:
*       barColor - Color of bars for postive values
*       negBarColor - Color of bars for negative values
*       zeroColor - Color of bars with zero values
*       nullColor - Color of bars with null values - Defaults to omitting the bar entirely
*       barWidth - Width of bars in pixels
*       colorMap - Optional mappnig of values to colors to override the *BarColor values above
*                  can be an Array of values to control the color of individual bars or a range map
*                  to specify colors for individual ranges of values
*       barSpacing - Gap between bars in pixels
*       zeroAxis - Centers the y-axis around zero if true
*
*   tristate - Charts values of win (>0), lose (<0) or draw (=0)
*       posBarColor - Color of win values
*       negBarColor - Color of lose values
*       zeroBarColor - Color of draw values
*       barWidth - Width of bars in pixels
*       barSpacing - Gap between bars in pixels
*       colorMap - Optional mappnig of values to colors to override the *BarColor values above
*                  can be an Array of values to control the color of individual bars or a range map
*                  to specify colors for individual ranges of values
*
*   discrete - Options:
*       lineHeight - Height of each line in pixels - Defaults to 30% of the graph height
*       thesholdValue - Values less than this value will be drawn using thresholdColor instead of lineColor
*       thresholdColor
*
*   bullet - Values for bullet graphs msut be in the order: target, performance, range1, range2, range3, ...
*       options:
*       targetColor - The color of the vertical target marker
*       targetWidth - The width of the target marker in pixels
*       performanceColor - The color of the performance measure horizontal bar
*       rangeColors - Colors to use for each qualitative range background color
*
*   pie - Pie chart. Options:
*       sliceColors - An array of colors to use for pie slices
*       offset - Angle in degrees to offset the first slice - Try -90 or +90
*       borderWidth - Width of border to draw around the pie chart, in pixels - Defaults to 0 (no border)
*       borderColor - Color to use for the pie chart border - Defaults to #000
*
*   box - Box plot. Options:
*       raw - Set to true to supply pre-computed plot points as values
*             values should be: low_outlier, low_whisker, q1, median, q3, high_whisker, high_outlier
*             When set to false you can supply any number of values and the box plot will
*             be computed for you.  Default is false.
*       showOutliers - Set to true (default) to display outliers as circles
*       outlierIQR - Interquartile range used to determine outliers.  Default 1.5
*       boxLineColor - Outline color of the box
*       boxFillColor - Fill color for the box
*       whiskerColor - Line color used for whiskers
*       outlierLineColor - Outline color of outlier circles
*       outlierFillColor - Fill color of the outlier circles
*       spotRadius - Radius of outlier circles
*       medianColor - Line color of the median line
*       target - Draw a target cross hair at the supplied value (default undefined)
*
*
*
*   Examples:
*   $('#sparkline1').sparkline(myvalues, { lineColor: '#f00', fillColor: false });
*   $('.barsparks').sparkline('html', { type:'bar', height:'40px', barWidth:5 });
*   $('#tristate').sparkline([1,1,-1,1,0,0,-1], { type:'tristate' }):
*   $('#discrete').sparkline([1,3,4,5,5,3,4,5], { type:'discrete' });
*   $('#bullet').sparkline([10,12,12,9,7], { type:'bullet' });
*   $('#pie').sparkline([1,1,2], { type:'pie' });
*/

/*jslint regexp: true, browser: true, jquery: true, white: true, nomen: false, plusplus: false, maxerr: 500, indent: 4 */

(function(document, Math, undefined) { // performance/minified-size optimization
(function(factory) {
	if(typeof define === 'function' && define.amd) {
		define(['jquery'], factory);
	} else if (jQuery && !jQuery.fn.sparkline) {
		factory(jQuery);
	}
}
(function($) {
	'use strict';

	var UNSET_OPTION = {},
		getDefaults, createClass, SPFormat, clipval, quartile, normalizeValue, normalizeValues,
		remove, isNumber, all, sum, addCSS, ensureArray, formatNumber, RangeMap,
		MouseHandler, Tooltip, barHighlightMixin,
		line, bar, tristate, discrete, bullet, pie, box, defaultStyles, initStyles,
		VShape, VCanvas_base, VCanvas_canvas, VCanvas_vml, pending, shapeCount = 0;

	/**
	* Default configuration settings
	*/
	getDefaults = function () {
		return {
			// Settings common to most/all chart types
			common: {
				type: 'line',
				lineColor: '#00f',
				fillColor: '#cdf',
				defaultPixelsPerValue: 3,
				width: 'auto',
				height: 'auto',
				composite: false,
				tagValuesAttribute: 'values',
				tagOptionsPrefix: 'spark',
				enableTagOptions: false,
				enableHighlight: true,
				highlightLighten: 1.4,
				tooltipSkipNull: true,
				tooltipPrefix: '',
				tooltipSuffix: '',
				disableHiddenCheck: false,
				numberFormatter: false,
				numberDigitGroupCount: 3,
				numberDigitGroupSep: ',',
				numberDecimalMark: '.',
				disableTooltips: false,
				disableInteraction: false
			},
			// Defaults for line charts
			line: {
				spotColor: '#f80',
				highlightSpotColor: '#5f5',
				highlightLineColor: '#f22',
				spotRadius: 1.5,
				minSpotColor: '#f80',
				maxSpotColor: '#f80',
				lineWidth: 1,
				normalRangeMin: undefined,
				normalRangeMax: undefined,
				normalRangeColor: '#ccc',
				drawNormalOnTop: false,
				chartRangeMin: undefined,
				chartRangeMax: undefined,
				chartRangeMinX: undefined,
				chartRangeMaxX: undefined,
				tooltipFormat: new SPFormat('{{prefix}}{{y}}{{suffix}}')
			},
			// Defaults for bar charts
			bar: {
				barColor: '#3366cc',
				negBarColor: '#f44',
				stackedBarColor: ['#3366cc', '#dc3912', '#ff9900', '#109618', '#66aa00',
					'#dd4477', '#0099c6', '#990099'],
				zeroColor: undefined,
				nullColor: undefined,
				zeroAxis: true,
				barWidth: 4,
				barSpacing: 1,
				chartRangeMax: undefined,
				chartRangeMin: undefined,
				chartRangeClip: false,
				colorMap: undefined,
				tooltipFormat: new SPFormat('{{prefix}}{{value}}{{suffix}}')
			},
			// Defaults for tristate charts
			tristate: {
				barWidth: 4,
				barSpacing: 1,
				posBarColor: '#6f6',
				negBarColor: '#f44',
				zeroBarColor: '#999',
				colorMap: {},
				tooltipFormat: new SPFormat('{{value:map}}'),
				tooltipValueLookups: { map: { '-1': 'Loss', '0': 'Draw', '1': 'Win' } }
			},
			// Defaults for discrete charts
			discrete: {
				lineHeight: 'auto',
				thresholdColor: undefined,
				thresholdValue: 0,
				chartRangeMax: undefined,
				chartRangeMin: undefined,
				chartRangeClip: false,
				tooltipFormat: new SPFormat('{{prefix}}{{value}}{{suffix}}')
			},
			// Defaults for bullet charts
			bullet: {
				targetColor: '#f33',
				targetWidth: 3, // width of the target bar in pixels
				performanceColor: '#33f',
				rangeColors: ['#d3dafe', '#a8b6ff', '#7f94ff'],
				base: undefined, // set this to a number to change the base start number
				tooltipFormat: new SPFormat('{{fieldkey:fields}} - {{value}}'),
				tooltipValueLookups: { fields: {r: 'Range', p: 'Performance', t: 'Target'} }
			},
			// Defaults for pie charts
			pie: {
				offset: 0,
				sliceColors: ['#3366cc', '#dc3912', '#ff9900', '#109618', '#66aa00',
					'#dd4477', '#0099c6', '#990099'],
				borderWidth: 0,
				borderColor: '#000',
				tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{value}} ({{percent.1}}%)')
			},
			// Defaults for box plots
			box: {
				raw: false,
				boxLineColor: '#000',
				boxFillColor: '#cdf',
				whiskerColor: '#000',
				outlierLineColor: '#333',
				outlierFillColor: '#fff',
				medianColor: '#f00',
				showOutliers: true,
				outlierIQR: 1.5,
				spotRadius: 1.5,
				target: undefined,
				targetColor: '#4a2',
				chartRangeMax: undefined,
				chartRangeMin: undefined,
				tooltipFormat: new SPFormat('{{field:fields}}: {{value}}'),
				tooltipFormatFieldlistKey: 'field',
				tooltipValueLookups: { fields: { lq: 'Lower Quartile', med: 'Median',
					uq: 'Upper Quartile', lo: 'Left Outlier', ro: 'Right Outlier',
					lw: 'Left Whisker', rw: 'Right Whisker'} }
			}
		};
	};

	// You can have tooltips use a css class other than jqstooltip by specifying tooltipClassname
	defaultStyles = '.jqstooltip { ' +
			'position: absolute;' +
			'left: 0px;' +
			'top: 0px;' +
			'visibility: hidden;' +
			'background-color: #3a3f44;' +
			'border-radius: 2px;' +
			'color: white;' +
			'text-align: right;' +
			'white-space: nowrap;' +
			'padding: 7px 14px;' +
			'z-index: 1000;' +
			'}' +
			'.jqsfield { ' +
			'color: white;' +
			'font-size: 14;' +
			'text-align: right;' +
			'}';

	/**
	* Utilities
	*/

	createClass = function (/* [baseclass, [mixin, ...]], definition */) {
		var Class, args;
		Class = function () {
			this.init.apply(this, arguments);
		};
		if (arguments.length > 1) {
			if (arguments[0]) {
				Class.prototype = $.extend(new arguments[0](), arguments[arguments.length - 1]);
				Class._super = arguments[0].prototype;
			} else {
				Class.prototype = arguments[arguments.length - 1];
			}
			if (arguments.length > 2) {
				args = Array.prototype.slice.call(arguments, 1, -1);
				args.unshift(Class.prototype);
				$.extend.apply($, args);
			}
		} else {
			Class.prototype = arguments[0];
		}
		Class.prototype.cls = Class;
		return Class;
	};

	/**
	* Wraps a format string for tooltips
	* {{x}}
	* {{x.2}
	* {{x:months}}
	*/
	$.SPFormatClass = SPFormat = createClass({
		fre: /\{\{([\w.]+?)(:(.+?))?\}\}/g,
		precre: /(\w+)\.(\d+)/,

		init: function (format, fclass) {
			this.format = format;
			this.fclass = fclass;
		},

		render: function (fieldset, lookups, options) {
			var self = this,
				fields = fieldset,
				match, token, lookupkey, fieldvalue, prec;
			return this.format.replace(this.fre, function () {
				var lookup;
				token = arguments[1];
				lookupkey = arguments[3];
				match = self.precre.exec(token);
				if (match) {
					prec = match[2];
					token = match[1];
				} else {
					prec = false;
				}
				fieldvalue = fields[token];
				if (fieldvalue === undefined) {
					return '';
				}
				if (lookupkey && lookups && lookups[lookupkey]) {
					lookup = lookups[lookupkey];
					if (lookup.get) { // RangeMap
						return lookups[lookupkey].get(fieldvalue) || fieldvalue;
					} else {
						return lookups[lookupkey][fieldvalue] || fieldvalue;
					}
				}
				if (isNumber(fieldvalue)) {
					if (options.get('numberFormatter')) {
						fieldvalue = options.get('numberFormatter')(fieldvalue);
					} else {
						fieldvalue = formatNumber(fieldvalue, prec,
							options.get('numberDigitGroupCount'),
							options.get('numberDigitGroupSep'),
							options.get('numberDecimalMark'));
					}
				}
				return fieldvalue;
			});
		}
	});

	// convience method to avoid needing the new operator
	$.spformat = function(format, fclass) {
		return new SPFormat(format, fclass);
	};

	clipval = function (val, min, max) {
		if (val < min) {
			return min;
		}
		if (val > max) {
			return max;
		}
		return val;
	};

	quartile = function (values, q) {
		var vl;
		if (q === 2) {
			vl = Math.floor(values.length / 2);
			return values.length % 2 ? values[vl] : (values[vl-1] + values[vl]) / 2;
		} else {
			if (values.length % 2 ) { // odd
				vl = (values.length * q + q) / 4;
				return vl % 1 ? (values[Math.floor(vl)] + values[Math.floor(vl) - 1]) / 2 : values[vl-1];
			} else { //even
				vl = (values.length * q + 2) / 4;
				return vl % 1 ? (values[Math.floor(vl)] + values[Math.floor(vl) - 1]) / 2 :  values[vl-1];

			}
		}
	};

	normalizeValue = function (val) {
		var nf;
		switch (val) {
			case 'undefined':
				val = undefined;
				break;
			case 'null':
				val = null;
				break;
			case 'true':
				val = true;
				break;
			case 'false':
				val = false;
				break;
			default:
				nf = parseFloat(val);
				if (val == nf) {
					val = nf;
				}
		}
		return val;
	};

	normalizeValues = function (vals) {
		var i, result = [];
		for (i = vals.length; i--;) {
			result[i] = normalizeValue(vals[i]);
		}
		return result;
	};

	remove = function (vals, filter) {
		var i, vl, result = [];
		for (i = 0, vl = vals.length; i < vl; i++) {
			if (vals[i] !== filter) {
				result.push(vals[i]);
			}
		}
		return result;
	};

	isNumber = function (num) {
		return !isNaN(parseFloat(num)) && isFinite(num);
	};

	formatNumber = function (num, prec, groupsize, groupsep, decsep) {
		var p, i;
		num = (prec === false ? parseFloat(num).toString() : num.toFixed(prec)).split('');
		p = (p = $.inArray('.', num)) < 0 ? num.length : p;
		if (p < num.length) {
			num[p] = decsep;
		}
		for (i = p - groupsize; i > 0; i -= groupsize) {
			num.splice(i, 0, groupsep);
		}
		return num.join('');
	};

	// determine if all values of an array match a value
	// returns true if the array is empty
	all = function (val, arr, ignoreNull) {
		var i;
		for (i = arr.length; i--; ) {
			if (ignoreNull && arr[i] === null) continue;
			if (arr[i] !== val) {
				return false;
			}
		}
		return true;
	};

	// sums the numeric values in an array, ignoring other values
	sum = function (vals) {
		var total = 0, i;
		for (i = vals.length; i--;) {
			total += typeof vals[i] === 'number' ? vals[i] : 0;
		}
		return total;
	};

	ensureArray = function (val) {
		return $.isArray(val) ? val : [val];
	};

	// http://paulirish.com/2008/bookmarklet-inject-new-css-rules/
	addCSS = function(css) {
		var tag;
		//if ('\v' == 'v') /* ie only */ {
		if (document.createStyleSheet) {
			document.createStyleSheet().cssText = css;
		} else {
			tag = document.createElement('style');
			tag.type = 'text/css';
			document.getElementsByTagName('head')[0].appendChild(tag);
			tag[(typeof document.body.style.WebkitAppearance == 'string') /* webkit only */ ? 'innerText' : 'innerHTML'] = css;
		}
	};

	// Provide a cross-browser interface to a few simple drawing primitives
	$.fn.simpledraw = function (width, height, useExisting, interact) {
		var target, mhandler;
		if (useExisting && (target = this.data('_jqs_vcanvas'))) {
			return target;
		}

		if ($.fn.sparkline.canvas === false) {
			// We've already determined that neither Canvas nor VML are available
			return false;

		} else if ($.fn.sparkline.canvas === undefined) {
			// No function defined yet -- need to see if we support Canvas or VML
			var el = document.createElement('canvas');
			if (!!(el.getContext && el.getContext('2d'))) {
				// Canvas is available
				$.fn.sparkline.canvas = function(width, height, target, interact) {
					return new VCanvas_canvas(width, height, target, interact);
				};
			} else if (document.namespaces && !document.namespaces.v) {
				// VML is available
				document.namespaces.add('v', 'urn:schemas-microsoft-com:vml', '#default#VML');
				$.fn.sparkline.canvas = function(width, height, target, interact) {
					return new VCanvas_vml(width, height, target);
				};
			} else {
				// Neither Canvas nor VML are available
				$.fn.sparkline.canvas = false;
				return false;
			}
		}

		if (width === undefined) {
			width = $(this).innerWidth();
		}
		if (height === undefined) {
			height = $(this).innerHeight();
		}

		target = $.fn.sparkline.canvas(width, height, this, interact);

		mhandler = $(this).data('_jqs_mhandler');
		if (mhandler) {
			mhandler.registerCanvas(target);
		}
		return target;
	};

	$.fn.cleardraw = function () {
		var target = this.data('_jqs_vcanvas');
		if (target) {
			target.reset();
		}
	};

	$.RangeMapClass = RangeMap = createClass({
		init: function (map) {
			var key, range, rangelist = [];
			for (key in map) {
				if (map.hasOwnProperty(key) && typeof key === 'string' && key.indexOf(':') > -1) {
					range = key.split(':');
					range[0] = range[0].length === 0 ? -Infinity : parseFloat(range[0]);
					range[1] = range[1].length === 0 ? Infinity : parseFloat(range[1]);
					range[2] = map[key];
					rangelist.push(range);
				}
			}
			this.map = map;
			this.rangelist = rangelist || false;
		},

		get: function (value) {
			var rangelist = this.rangelist,
				i, range, result;
			if ((result = this.map[value]) !== undefined) {
				return result;
			}
			if (rangelist) {
				for (i = rangelist.length; i--;) {
					range = rangelist[i];
					if (range[0] <= value && range[1] >= value) {
						return range[2];
					}
				}
			}
			return undefined;
		}
	});

	// Convenience function
	$.range_map = function(map) {
		return new RangeMap(map);
	};

	MouseHandler = createClass({
		init: function (el, options) {
			var $el = $(el);
			this.$el = $el;
			this.options = options;
			this.currentPageX = 0;
			this.currentPageY = 0;
			this.el = el;
			this.splist = [];
			this.tooltip = null;
			this.over = false;
			this.displayTooltips = !options.get('disableTooltips');
			this.highlightEnabled = !options.get('disableHighlight');
		},

		registerSparkline: function (sp) {
			this.splist.push(sp);
			if (this.over) {
				this.updateDisplay();
			}
		},

		registerCanvas: function (canvas) {
			var $canvas = $(canvas.canvas);
			this.canvas = canvas;
			this.$canvas = $canvas;
			$canvas.mouseenter($.proxy(this.mouseenter, this));
			$canvas.mouseleave($.proxy(this.mouseleave, this));
			$canvas.click($.proxy(this.mouseclick, this));
		},

		reset: function (removeTooltip) {
			this.splist = [];
			if (this.tooltip && removeTooltip) {
				this.tooltip.remove();
				this.tooltip = undefined;
			}
		},

		mouseclick: function (e) {
			var clickEvent = $.Event('sparklineClick');
			clickEvent.originalEvent = e;
			clickEvent.sparklines = this.splist;
			this.$el.trigger(clickEvent);
		},

		mouseenter: function (e) {
			$(document.body).unbind('mousemove.jqs');
			$(document.body).bind('mousemove.jqs', $.proxy(this.mousemove, this));
			this.over = true;
			this.currentPageX = e.pageX;
			this.currentPageY = e.pageY;
			this.currentEl = e.target;
			if (!this.tooltip && this.displayTooltips) {
				this.tooltip = new Tooltip(this.options);
				this.tooltip.updatePosition(e.pageX, e.pageY);
			}
			this.updateDisplay();
		},

		mouseleave: function () {
			$(document.body).unbind('mousemove.jqs');
			var splist = this.splist,
				spcount = splist.length,
				needsRefresh = false,
				sp, i;
			this.over = false;
			this.currentEl = null;

			if (this.tooltip) {
				this.tooltip.remove();
				this.tooltip = null;
			}

			for (i = 0; i < spcount; i++) {
				sp = splist[i];
				if (sp.clearRegionHighlight()) {
					needsRefresh = true;
				}
			}

			if (needsRefresh) {
				this.canvas.render();
			}
		},

		mousemove: function (e) {
			this.currentPageX = e.pageX;
			this.currentPageY = e.pageY;
			this.currentEl = e.target;
			if (this.tooltip) {
				this.tooltip.updatePosition(e.pageX, e.pageY);
			}
			this.updateDisplay();
		},

		updateDisplay: function () {
			var splist = this.splist,
				spcount = splist.length,
				needsRefresh = false,
				offset = this.$canvas.offset(),
				localX = this.currentPageX - offset.left,
				localY = this.currentPageY - offset.top,
				tooltiphtml, sp, i, result, changeEvent;
			if (!this.over) {
				return;
			}
			for (i = 0; i < spcount; i++) {
				sp = splist[i];
				result = sp.setRegionHighlight(this.currentEl, localX, localY);
				if (result) {
					needsRefresh = true;
				}
			}
			if (needsRefresh) {
				changeEvent = $.Event('sparklineRegionChange');
				changeEvent.sparklines = this.splist;
				this.$el.trigger(changeEvent);
				if (this.tooltip) {
					tooltiphtml = '';
					for (i = 0; i < spcount; i++) {
						sp = splist[i];
						tooltiphtml += sp.getCurrentRegionTooltip();
					}
					this.tooltip.setContent(tooltiphtml);
				}
				if (!this.disableHighlight) {
					this.canvas.render();
				}
			}
			if (result === null) {
				this.mouseleave();
			}
		}
	});


	Tooltip = createClass({
		sizeStyle: 'position: static !important;' +
			'display: block !important;' +
			'visibility: hidden !important;' +
			'float: left !important;',

		init: function (options) {
			var tooltipClassname = options.get('tooltipClassname', 'jqstooltip'),
				sizetipStyle = this.sizeStyle,
				offset;
			this.container = options.get('tooltipContainer') || document.body;
			this.tooltipOffsetX = options.get('tooltipOffsetX', 10);
			this.tooltipOffsetY = options.get('tooltipOffsetY', 12);
			// remove any previous lingering tooltip
			$('#jqssizetip').remove();
			$('#jqstooltip').remove();
			this.sizetip = $('<div/>', {
				id: 'jqssizetip',
				style: sizetipStyle,
				'class': tooltipClassname
			});
			this.tooltip = $('<div/>', {
				id: 'jqstooltip',
				'class': tooltipClassname
			}).appendTo(this.container);
			// account for the container's location
			offset = this.tooltip.offset();
			this.offsetLeft = offset.left;
			this.offsetTop = offset.top;
			this.hidden = true;
			$(window).unbind('resize.jqs scroll.jqs');
			$(window).bind('resize.jqs scroll.jqs', $.proxy(this.updateWindowDims, this));
			this.updateWindowDims();
		},

		updateWindowDims: function () {
			this.scrollTop = $(window).scrollTop();
			this.scrollLeft = $(window).scrollLeft();
			this.scrollRight = this.scrollLeft + $(window).width();
			this.updatePosition();
		},

		getSize: function (content) {
			this.sizetip.html(content).appendTo(this.container);
			this.width = this.sizetip.width() + 1;
			this.height = this.sizetip.height();
			this.sizetip.remove();
		},

		setContent: function (content) {
			if (!content) {
				this.tooltip.css('visibility', 'hidden');
				this.hidden = true;
				return;
			}
			this.getSize(content);
			this.tooltip.html(content)
				.css({
					// 'width': this.width,
					// 'height': this.height,
					'visibility': 'visible'
				});
			if (this.hidden) {
				this.hidden = false;
				this.updatePosition();
			}
		},

		updatePosition: function (x, y) {
			if (x === undefined) {
				if (this.mousex === undefined) {
					return;
				}
				x = this.mousex - this.offsetLeft;
				y = this.mousey - this.offsetTop;

			} else {
				this.mousex = x = x - this.offsetLeft;
				this.mousey = y = y - this.offsetTop;
			}
			if (!this.height || !this.width || this.hidden) {
				return;
			}

			y -= this.height + this.tooltipOffsetY + 20;
			x += this.tooltipOffsetX - this.width;

			if (y < this.scrollTop) {
				y = this.scrollTop;
			}
			if (x < this.scrollLeft) {
				x = this.scrollLeft;
			} else if (x + this.width > this.scrollRight) {
				x = this.scrollRight - this.width;
			}

			this.tooltip.css({
				'left': x,
				'top': y
			});
		},

		remove: function () {
			this.tooltip.remove();
			this.sizetip.remove();
			this.sizetip = this.tooltip = undefined;
			$(window).unbind('resize.jqs scroll.jqs');
		}
	});

	initStyles = function() {
		addCSS(defaultStyles);
	};

	$(initStyles);

	pending = [];
	$.fn.sparkline = function (userValues, userOptions) {
		return this.each(function () {
			var options = new $.fn.sparkline.options(this, userOptions),
				$this = $(this),
				render, i;
			render = function () {
				var values, width, height, tmp, mhandler, sp, vals;
				if (userValues === 'html' || userValues === undefined) {
					vals = this.getAttribute(options.get('tagValuesAttribute'));
					if (vals === undefined || vals === null) {
						vals = $this.html();
					}
					values = vals.replace(/(^\s*<!--)|(-->\s*$)|\s+/g, '').split(',');
				} else {
					values = userValues;
				}

				width = options.get('width') === 'auto' ? values.length * options.get('defaultPixelsPerValue') : options.get('width');
				if (options.get('height') === 'auto') {
					if (!options.get('composite') || !$.data(this, '_jqs_vcanvas')) {
						// must be a better way to get the line height
						tmp = document.createElement('span');
						tmp.innerHTML = 'a';
						$this.html(tmp);
						height = $(tmp).innerHeight() || $(tmp).height();
						$(tmp).remove();
						tmp = null;
					}
				} else {
					height = options.get('height');
				}

				if (!options.get('disableInteraction')) {
					mhandler = $.data(this, '_jqs_mhandler');
					if (!mhandler) {
						mhandler = new MouseHandler(this, options);
						$.data(this, '_jqs_mhandler', mhandler);
					} else if (!options.get('composite')) {
						mhandler.reset();
					}
				} else {
					mhandler = false;
				}

				if (options.get('composite') && !$.data(this, '_jqs_vcanvas')) {
					if (!$.data(this, '_jqs_errnotify')) {
						alert('Attempted to attach a composite sparkline to an element with no existing sparkline');
						$.data(this, '_jqs_errnotify', true);
					}
					return;
				}

				sp = new $.fn.sparkline[options.get('type')](this, values, options, width, height);

				sp.render();

				if (mhandler) {
					mhandler.registerSparkline(sp);
				}
			};
			if (($(this).html() && !options.get('disableHiddenCheck') && $(this).is(':hidden')) || !$(this).parents('body').length) {
				if (!options.get('composite') && $.data(this, '_jqs_pending')) {
					// remove any existing references to the element
					for (i = pending.length; i; i--) {
						if (pending[i - 1][0] == this) {
							pending.splice(i - 1, 1);
						}
					}
				}
				pending.push([this, render]);
				$.data(this, '_jqs_pending', true);
			} else {
				render.call(this);
			}
		});
	};

	$.fn.sparkline.defaults = getDefaults();


	$.sparkline_display_visible = function () {
		var el, i, pl;
		var done = [];
		for (i = 0, pl = pending.length; i < pl; i++) {
			el = pending[i][0];
			if ($(el).is(':visible') && !$(el).parents().is(':hidden')) {
				pending[i][1].call(el);
				$.data(pending[i][0], '_jqs_pending', false);
				done.push(i);
			} else if (!$(el).closest('html').length && !$.data(el, '_jqs_pending')) {
				// element has been inserted and removed from the DOM
				// If it was not yet inserted into the dom then the .data request
				// will return true.
				// removing from the dom causes the data to be removed.
				$.data(pending[i][0], '_jqs_pending', false);
				done.push(i);
			}
		}
		for (i = done.length; i; i--) {
			pending.splice(done[i - 1], 1);
		}
	};


	/**
	* User option handler
	*/
	$.fn.sparkline.options = createClass({
		init: function (tag, userOptions) {
			var extendedOptions, defaults, base, tagOptionType;
			this.userOptions = userOptions = userOptions || {};
			this.tag = tag;
			this.tagValCache = {};
			defaults = $.fn.sparkline.defaults;
			base = defaults.common;
			this.tagOptionsPrefix = userOptions.enableTagOptions && (userOptions.tagOptionsPrefix || base.tagOptionsPrefix);

			tagOptionType = this.getTagSetting('type');
			if (tagOptionType === UNSET_OPTION) {
				extendedOptions = defaults[userOptions.type || base.type];
			} else {
				extendedOptions = defaults[tagOptionType];
			}
			this.mergedOptions = $.extend({}, base, extendedOptions, userOptions);
		},


		getTagSetting: function (key) {
			var prefix = this.tagOptionsPrefix,
				val, i, pairs, keyval;
			if (prefix === false || prefix === undefined) {
				return UNSET_OPTION;
			}
			if (this.tagValCache.hasOwnProperty(key)) {
				val = this.tagValCache.key;
			} else {
				val = this.tag.getAttribute(prefix + key);
				if (val === undefined || val === null) {
					val = UNSET_OPTION;
				} else if (val.substr(0, 1) === '[') {
					val = val.substr(1, val.length - 2).split(',');
					for (i = val.length; i--;) {
						val[i] = normalizeValue(val[i].replace(/(^\s*)|(\s*$)/g, ''));
					}
				} else if (val.substr(0, 1) === '{') {
					pairs = val.substr(1, val.length - 2).split(',');
					val = {};
					for (i = pairs.length; i--;) {
						keyval = pairs[i].split(':', 2);
						val[keyval[0].replace(/(^\s*)|(\s*$)/g, '')] = normalizeValue(keyval[1].replace(/(^\s*)|(\s*$)/g, ''));
					}
				} else {
					val = normalizeValue(val);
				}
				this.tagValCache.key = val;
			}
			return val;
		},

		get: function (key, defaultval) {
			var tagOption = this.getTagSetting(key),
				result;
			if (tagOption !== UNSET_OPTION) {
				return tagOption;
			}
			return (result = this.mergedOptions[key]) === undefined ? defaultval : result;
		}
	});


	$.fn.sparkline._base = createClass({
		disabled: false,

		init: function (el, values, options, width, height) {
			this.el = el;
			this.$el = $(el);
			this.values = values;
			this.options = options;
			this.width = width;
			this.height = height;
			this.currentRegion = undefined;
		},

		/**
		* Setup the canvas
		*/
		initTarget: function () {
			var interactive = !this.options.get('disableInteraction');
			if (!(this.target = this.$el.simpledraw(this.width, this.height, this.options.get('composite'), interactive))) {
				this.disabled = true;
			} else {
				this.canvasWidth = this.target.pixelWidth;
				this.canvasHeight = this.target.pixelHeight;
			}
		},

		/**
		* Actually render the chart to the canvas
		*/
		render: function () {
			if (this.disabled) {
				this.el.innerHTML = '';
				return false;
			}
			return true;
		},

		/**
		* Return a region id for a given x/y co-ordinate
		*/
		getRegion: function (x, y) {
		},

		/**
		* Highlight an item based on the moused-over x,y co-ordinate
		*/
		setRegionHighlight: function (el, x, y) {
			var currentRegion = this.currentRegion,
				highlightEnabled = !this.options.get('disableHighlight'),
				newRegion;
			if (x > this.canvasWidth || y > this.canvasHeight || x < 0 || y < 0) {
				return null;
			}
			newRegion = this.getRegion(el, x, y);
			if (currentRegion !== newRegion) {
				if (currentRegion !== undefined && highlightEnabled) {
					this.removeHighlight();
				}
				this.currentRegion = newRegion;
				if (newRegion !== undefined && highlightEnabled) {
					this.renderHighlight();
				}
				return true;
			}
			return false;
		},

		/**
		* Reset any currently highlighted item
		*/
		clearRegionHighlight: function () {
			if (this.currentRegion !== undefined) {
				this.removeHighlight();
				this.currentRegion = undefined;
				return true;
			}
			return false;
		},

		renderHighlight: function () {
			this.changeHighlight(true);
		},

		removeHighlight: function () {
			this.changeHighlight(false);
		},

		changeHighlight: function (highlight)  {},

		/**
		* Fetch the HTML to display as a tooltip
		*/
		getCurrentRegionTooltip: function () {
			var options = this.options,
				header = '',
				entries = [],
				fields, formats, formatlen, fclass, text, i,
				showFields, showFieldsKey, newFields, fv,
				formatter, format, fieldlen, j;
			if (this.currentRegion === undefined) {
				return '';
			}
			fields = this.getCurrentRegionFields();
			formatter = options.get('tooltipFormatter');
			if (formatter) {
				return formatter(this, options, fields);
			}
			if (options.get('tooltipChartTitle')) {
				header += '<div class="jqs jqstitle text-semibold text-lg">' + options.get('tooltipChartTitle') + '</div>\n';
			}
			formats = this.options.get('tooltipFormat');
			if (!formats) {
				return '';
			}
			if (!$.isArray(formats)) {
				formats = [formats];
			}
			if (!$.isArray(fields)) {
				fields = [fields];
			}
			showFields = this.options.get('tooltipFormatFieldlist');
			showFieldsKey = this.options.get('tooltipFormatFieldlistKey');
			if (showFields && showFieldsKey) {
				// user-selected ordering of fields
				newFields = [];
				for (i = fields.length; i--;) {
					fv = fields[i][showFieldsKey];
					if ((j = $.inArray(fv, showFields)) != -1) {
						newFields[j] = fields[i];
					}
				}
				fields = newFields;
			}
			formatlen = formats.length;
			fieldlen = fields.length;
			for (i = 0; i < formatlen; i++) {
				format = formats[i];
				if (typeof format === 'string') {
					format = new SPFormat(format);
				}
				fclass = format.fclass || 'jqsfield';
				for (j = 0; j < fieldlen; j++) {
					if (!fields[j].isNull || !options.get('tooltipSkipNull')) {
						$.extend(fields[j], {
							prefix: options.get('tooltipPrefix'),
							suffix: options.get('tooltipSuffix')
						});
						text = format.render(fields[j], options.get('tooltipValueLookups'), options);
						entries.push('<div class="' + fclass + '">' + text + '</div>');
					}
				}
			}
			if (entries.length) {
				return header + entries.join('\n');
			}
			return '';
		},

		getCurrentRegionFields: function () {},

		calcHighlightColor: function (color, options) {
			var highlightColor = options.get('highlightColor'),
				lighten = options.get('highlightLighten'),
				parse, mult, rgbnew, i;
			if (highlightColor) {
				return highlightColor;
			}
			if (lighten) {
				// extract RGB values
				parse = /^#([0-9a-f])([0-9a-f])([0-9a-f])$/i.exec(color) || /^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i.exec(color);
				if (parse) {
					rgbnew = [];
					mult = color.length === 4 ? 16 : 1;
					for (i = 0; i < 3; i++) {
						rgbnew[i] = clipval(Math.round(parseInt(parse[i + 1], 16) * mult * lighten), 0, 255);
					}
					return 'rgb(' + rgbnew.join(',') + ')';
				}

			}
			return color;
		}

	});

	barHighlightMixin = {
		changeHighlight: function (highlight) {
			var currentRegion = this.currentRegion,
				target = this.target,
				shapeids = this.regionShapes[currentRegion],
				newShapes;
			// will be null if the region value was null
			if (shapeids) {
				newShapes = this.renderRegion(currentRegion, highlight);
				if ($.isArray(newShapes) || $.isArray(shapeids)) {
					target.replaceWithShapes(shapeids, newShapes);
					this.regionShapes[currentRegion] = $.map(newShapes, function (newShape) {
						return newShape.id;
					});
				} else {
					target.replaceWithShape(shapeids, newShapes);
					this.regionShapes[currentRegion] = newShapes.id;
				}
			}
		},

		render: function () {
			var values = this.values,
				target = this.target,
				regionShapes = this.regionShapes,
				shapes, ids, i, j;

			if (!this.cls._super.render.call(this)) {
				return;
			}
			for (i = values.length; i--;) {
				shapes = this.renderRegion(i);
				if (shapes) {
					if ($.isArray(shapes)) {
						ids = [];
						for (j = shapes.length; j--;) {
							shapes[j].append();
							ids.push(shapes[j].id);
						}
						regionShapes[i] = ids;
					} else {
						shapes.append();
						regionShapes[i] = shapes.id; // store just the shapeid
					}
				} else {
					// null value
					regionShapes[i] = null;
				}
			}
			target.render();
		}
	};

	/**
	* Line charts
	*/
	$.fn.sparkline.line = line = createClass($.fn.sparkline._base, {
		type: 'line',

		init: function (el, values, options, width, height) {
			line._super.init.call(this, el, values, options, width, height);
			this.vertices = [];
			this.regionMap = [];
			this.xvalues = [];
			this.yvalues = [];
			this.yminmax = [];
			this.hightlightSpotId = null;
			this.lastShapeId = null;
			this.initTarget();
		},

		getRegion: function (el, x, y) {
			var i,
				regionMap = this.regionMap; // maps regions to value positions
			for (i = regionMap.length; i--;) {
				if (regionMap[i] !== null && x >= regionMap[i][0] && x <= regionMap[i][1]) {
					return regionMap[i][2];
				}
			}
			return undefined;
		},

		getCurrentRegionFields: function () {
			var currentRegion = this.currentRegion;
			return {
				isNull: this.yvalues[currentRegion] === null,
				x: this.xvalues[currentRegion],
				y: this.yvalues[currentRegion],
				color: this.options.get('lineColor'),
				fillColor: this.options.get('fillColor'),
				offset: currentRegion
			};
		},

		renderHighlight: function () {
			var currentRegion = this.currentRegion,
				target = this.target,
				vertex = this.vertices[currentRegion],
				options = this.options,
				spotRadius = options.get('spotRadius'),
				highlightSpotColor = options.get('highlightSpotColor'),
				highlightLineColor = options.get('highlightLineColor'),
				highlightSpot, highlightLine;

			if (!vertex) {
				return;
			}
			if (spotRadius && highlightSpotColor) {
				highlightSpot = target.drawCircle(vertex[0], vertex[1],
					spotRadius, undefined, highlightSpotColor);
				this.highlightSpotId = highlightSpot.id;
				target.insertAfterShape(this.lastShapeId, highlightSpot);
			}
			if (highlightLineColor) {
				highlightLine = target.drawLine(vertex[0], this.canvasTop, vertex[0],
					this.canvasTop + this.canvasHeight, highlightLineColor);
				this.highlightLineId = highlightLine.id;
				target.insertAfterShape(this.lastShapeId, highlightLine);
			}
		},

		removeHighlight: function () {
			var target = this.target;
			if (this.highlightSpotId) {
				target.removeShapeId(this.highlightSpotId);
				this.highlightSpotId = null;
			}
			if (this.highlightLineId) {
				target.removeShapeId(this.highlightLineId);
				this.highlightLineId = null;
			}
		},

		scanValues: function () {
			var values = this.values,
				valcount = values.length,
				xvalues = this.xvalues,
				yvalues = this.yvalues,
				yminmax = this.yminmax,
				i, val, isStr, isArray, sp;
			for (i = 0; i < valcount; i++) {
				val = values[i];
				isStr = typeof(values[i]) === 'string';
				isArray = typeof(values[i]) === 'object' && values[i] instanceof Array;
				sp = isStr && values[i].split(':');
				if (isStr && sp.length === 2) { // x:y
					xvalues.push(Number(sp[0]));
					yvalues.push(Number(sp[1]));
					yminmax.push(Number(sp[1]));
				} else if (isArray) {
					xvalues.push(val[0]);
					yvalues.push(val[1]);
					yminmax.push(val[1]);
				} else {
					xvalues.push(i);
					if (values[i] === null || values[i] === 'null') {
						yvalues.push(null);
					} else {
						yvalues.push(Number(val));
						yminmax.push(Number(val));
					}
				}
			}
			if (this.options.get('xvalues')) {
				xvalues = this.options.get('xvalues');
			}

			this.maxy = this.maxyorg = Math.max.apply(Math, yminmax);
			this.miny = this.minyorg = Math.min.apply(Math, yminmax);

			this.maxx = Math.max.apply(Math, xvalues);
			this.minx = Math.min.apply(Math, xvalues);

			this.xvalues = xvalues;
			this.yvalues = yvalues;
			this.yminmax = yminmax;

		},

		processRangeOptions: function () {
			var options = this.options,
				normalRangeMin = options.get('normalRangeMin'),
				normalRangeMax = options.get('normalRangeMax');

			if (normalRangeMin !== undefined) {
				if (normalRangeMin < this.miny) {
					this.miny = normalRangeMin;
				}
				if (normalRangeMax > this.maxy) {
					this.maxy = normalRangeMax;
				}
			}
			if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.miny)) {
				this.miny = options.get('chartRangeMin');
			}
			if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.maxy)) {
				this.maxy = options.get('chartRangeMax');
			}
			if (options.get('chartRangeMinX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMinX') < this.minx)) {
				this.minx = options.get('chartRangeMinX');
			}
			if (options.get('chartRangeMaxX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMaxX') > this.maxx)) {
				this.maxx = options.get('chartRangeMaxX');
			}

		},

		drawNormalRange: function (canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey) {
			var normalRangeMin = this.options.get('normalRangeMin'),
				normalRangeMax = this.options.get('normalRangeMax'),
				ytop = canvasTop + Math.round(canvasHeight - (canvasHeight * ((normalRangeMax - this.miny) / rangey))),
				height = Math.round((canvasHeight * (normalRangeMax - normalRangeMin)) / rangey);
			this.target.drawRect(canvasLeft, ytop, canvasWidth, height, undefined, this.options.get('normalRangeColor')).append();
		},

		render: function () {
			var options = this.options,
				target = this.target,
				canvasWidth = this.canvasWidth,
				canvasHeight = this.canvasHeight,
				vertices = this.vertices,
				spotRadius = options.get('spotRadius'),
				regionMap = this.regionMap,
				rangex, rangey, yvallast,
				canvasTop, canvasLeft,
				vertex, path, paths, x, y, xnext, xpos, xposnext,
				last, next, yvalcount, lineShapes, fillShapes, plen,
				valueSpots, hlSpotsEnabled, color, xvalues, yvalues, i;

			if (!line._super.render.call(this)) {
				return;
			}

			this.scanValues();
			this.processRangeOptions();

			xvalues = this.xvalues;
			yvalues = this.yvalues;

			if (!this.yminmax.length || this.yvalues.length < 2) {
				// empty or all null valuess
				return;
			}

			canvasTop = canvasLeft = 0;

			rangex = this.maxx - this.minx === 0 ? 1 : this.maxx - this.minx;
			rangey = this.maxy - this.miny === 0 ? 1 : this.maxy - this.miny;
			yvallast = this.yvalues.length - 1;

			if (spotRadius && (canvasWidth < (spotRadius * 4) || canvasHeight < (spotRadius * 4))) {
				spotRadius = 0;
			}
			if (spotRadius) {
				// adjust the canvas size as required so that spots will fit
				hlSpotsEnabled = options.get('highlightSpotColor') &&  !options.get('disableInteraction');
				if (hlSpotsEnabled || options.get('minSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.miny)) {
					canvasHeight -= Math.ceil(spotRadius);
				}
				if (hlSpotsEnabled || options.get('maxSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.maxy)) {
					canvasHeight -= Math.ceil(spotRadius);
					canvasTop += Math.ceil(spotRadius);
				}
				if (hlSpotsEnabled ||
					((options.get('minSpotColor') || options.get('maxSpotColor')) && (yvalues[0] === this.miny || yvalues[0] === this.maxy))) {
					canvasLeft += Math.ceil(spotRadius);
					canvasWidth -= Math.ceil(spotRadius);
				}
				if (hlSpotsEnabled || options.get('spotColor') ||
					(options.get('minSpotColor') || options.get('maxSpotColor') &&
						(yvalues[yvallast] === this.miny || yvalues[yvallast] === this.maxy))) {
					canvasWidth -= Math.ceil(spotRadius);
				}
			}


			canvasHeight--;

			if (options.get('normalRangeMin') !== undefined && !options.get('drawNormalOnTop')) {
				this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey);
			}

			path = [];
			paths = [path];
			last = next = null;
			yvalcount = yvalues.length;
			for (i = 0; i < yvalcount; i++) {
				x = xvalues[i];
				xnext = xvalues[i + 1];
				y = yvalues[i];
				xpos = canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex));
				xposnext = i < yvalcount - 1 ? canvasLeft + Math.round((xnext - this.minx) * (canvasWidth / rangex)) : canvasWidth;
				next = xpos + ((xposnext - xpos) / 2);
				regionMap[i] = [last || 0, next, i];
				last = next;
				if (y === null) {
					if (i) {
						if (yvalues[i - 1] !== null) {
							path = [];
							paths.push(path);
						}
						vertices.push(null);
					}
				} else {
					if (y < this.miny) {
						y = this.miny;
					}
					if (y > this.maxy) {
						y = this.maxy;
					}
					if (!path.length) {
						// previous value was null
						path.push([xpos, canvasTop + canvasHeight]);
					}
					vertex = [xpos, canvasTop + Math.round(canvasHeight - (canvasHeight * ((y - this.miny) / rangey)))];
					path.push(vertex);
					vertices.push(vertex);
				}
			}

			lineShapes = [];
			fillShapes = [];
			plen = paths.length;
			for (i = 0; i < plen; i++) {
				path = paths[i];
				if (path.length) {
					if (options.get('fillColor')) {
						path.push([path[path.length - 1][0], (canvasTop + canvasHeight)]);
						fillShapes.push(path.slice(0));
						path.pop();
					}
					// if there's only a single point in this path, then we want to display it
					// as a vertical line which means we keep path[0]  as is
					if (path.length > 2) {
						// else we want the first value
						path[0] = [path[0][0], path[1][1]];
					}
					lineShapes.push(path);
				}
			}

			// draw the fill first, then optionally the normal range, then the line on top of that
			plen = fillShapes.length;
			for (i = 0; i < plen; i++) {
				target.drawShape(fillShapes[i],
					options.get('fillColor'), options.get('fillColor')).append();
			}

			if (options.get('normalRangeMin') !== undefined && options.get('drawNormalOnTop')) {
				this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey);
			}

			plen = lineShapes.length;
			for (i = 0; i < plen; i++) {
				target.drawShape(lineShapes[i], options.get('lineColor'), undefined,
					options.get('lineWidth')).append();
			}

			if (spotRadius && options.get('valueSpots')) {
				valueSpots = options.get('valueSpots');
				if (valueSpots.get === undefined) {
					valueSpots = new RangeMap(valueSpots);
				}
				for (i = 0; i < yvalcount; i++) {
					color = valueSpots.get(yvalues[i]);
					if (color) {
						target.drawCircle(canvasLeft + Math.round((xvalues[i] - this.minx) * (canvasWidth / rangex)),
							canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[i] - this.miny) / rangey))),
							spotRadius, undefined,
							color).append();
					}
				}

			}
			if (spotRadius && options.get('spotColor') && yvalues[yvallast] !== null) {
				target.drawCircle(canvasLeft + Math.round((xvalues[xvalues.length - 1] - this.minx) * (canvasWidth / rangex)),
					canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[yvallast] - this.miny) / rangey))),
					spotRadius, undefined,
					options.get('spotColor')).append();
			}
			if (this.maxy !== this.minyorg) {
				if (spotRadius && options.get('minSpotColor')) {
					x = xvalues[$.inArray(this.minyorg, yvalues)];
					target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)),
						canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.minyorg - this.miny) / rangey))),
						spotRadius, undefined,
						options.get('minSpotColor')).append();
				}
				if (spotRadius && options.get('maxSpotColor')) {
					x = xvalues[$.inArray(this.maxyorg, yvalues)];
					target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)),
						canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.maxyorg - this.miny) / rangey))),
						spotRadius, undefined,
						options.get('maxSpotColor')).append();
				}
			}

			this.lastShapeId = target.getLastShapeId();
			this.canvasTop = canvasTop;
			target.render();
		}
	});

	/**
	* Bar charts
	*/
	$.fn.sparkline.bar = bar = createClass($.fn.sparkline._base, barHighlightMixin, {
		type: 'bar',

		init: function (el, values, options, width, height) {
			var barWidth = parseInt(options.get('barWidth'), 10),
				barSpacing = parseInt(options.get('barSpacing'), 10),
				chartRangeMin = options.get('chartRangeMin'),
				chartRangeMax = options.get('chartRangeMax'),
				chartRangeClip = options.get('chartRangeClip'),
				stackMin = Infinity,
				stackMax = -Infinity,
				isStackString, groupMin, groupMax, stackRanges,
				numValues, i, vlen, range, zeroAxis, xaxisOffset, min, max, clipMin, clipMax,
				stacked, vlist, j, slen, svals, val, yoffset, yMaxCalc, canvasHeightEf;
			bar._super.init.call(this, el, values, options, width, height);

			// scan values to determine whether to stack bars
			for (i = 0, vlen = values.length; i < vlen; i++) {
				val = values[i];
				isStackString = typeof(val) === 'string' && val.indexOf(':') > -1;
				if (isStackString || $.isArray(val)) {
					stacked = true;
					if (isStackString) {
						val = values[i] = normalizeValues(val.split(':'));
					}
					val = remove(val, null); // min/max will treat null as zero
					groupMin = Math.min.apply(Math, val);
					groupMax = Math.max.apply(Math, val);
					if (groupMin < stackMin) {
						stackMin = groupMin;
					}
					if (groupMax > stackMax) {
						stackMax = groupMax;
					}
				}
			}

			this.stacked = stacked;
			this.regionShapes = {};
			this.barWidth = barWidth;
			this.barSpacing = barSpacing;
			this.totalBarWidth = barWidth + barSpacing;
			this.width = width = (values.length * barWidth) + ((values.length - 1) * barSpacing);

			this.initTarget();

			if (chartRangeClip) {
				clipMin = chartRangeMin === undefined ? -Infinity : chartRangeMin;
				clipMax = chartRangeMax === undefined ? Infinity : chartRangeMax;
			}

			numValues = [];
			stackRanges = stacked ? [] : numValues;
			var stackTotals = [];
			var stackRangesNeg = [];
			for (i = 0, vlen = values.length; i < vlen; i++) {
				if (stacked) {
					vlist = values[i];
					values[i] = svals = [];
					stackTotals[i] = 0;
					stackRanges[i] = stackRangesNeg[i] = 0;
					for (j = 0, slen = vlist.length; j < slen; j++) {
						val = svals[j] = chartRangeClip ? clipval(vlist[j], clipMin, clipMax) : vlist[j];
						if (val !== null) {
							if (val > 0) {
								stackTotals[i] += val;
							}
							if (stackMin < 0 && stackMax > 0) {
								if (val < 0) {
									stackRangesNeg[i] += Math.abs(val);
								} else {
									stackRanges[i] += val;
								}
							} else {
								stackRanges[i] += Math.abs(val - (val < 0 ? stackMax : stackMin));
							}
							numValues.push(val);
						}
					}
				} else {
					val = chartRangeClip ? clipval(values[i], clipMin, clipMax) : values[i];
					val = values[i] = normalizeValue(val);
					if (val !== null) {
						numValues.push(val);
					}
				}
			}
			this.max = max = Math.max.apply(Math, numValues);
			this.min = min = Math.min.apply(Math, numValues);
			this.stackMax = stackMax = stacked ? Math.max.apply(Math, stackTotals) : max;
			this.stackMin = stackMin = stacked ? Math.min.apply(Math, numValues) : min;

			if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < min)) {
				min = options.get('chartRangeMin');
			}
			if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > max)) {
				max = options.get('chartRangeMax');
			}

			this.zeroAxis = zeroAxis = options.get('zeroAxis', true);
			if (min <= 0 && max >= 0 && zeroAxis) {
				xaxisOffset = 0;
			} else if (zeroAxis == false) {
				xaxisOffset = min;
			} else if (min > 0) {
				xaxisOffset = min;
			} else {
				xaxisOffset = max;
			}
			this.xaxisOffset = xaxisOffset;

			range = stacked ? (Math.max.apply(Math, stackRanges) + Math.max.apply(Math, stackRangesNeg)) : max - min;

			// as we plot zero/min values a single pixel line, we add a pixel to all other
			// values - Reduce the effective canvas size to suit
			this.canvasHeightEf = (zeroAxis && min < 0) ? this.canvasHeight - 2 : this.canvasHeight - 1;

			if (min < xaxisOffset) {
				yMaxCalc = (stacked && max >= 0) ? stackMax : max;
				yoffset = (yMaxCalc - xaxisOffset) / range * this.canvasHeight;
				if (yoffset !== Math.ceil(yoffset)) {
					this.canvasHeightEf -= 2;
					yoffset = Math.ceil(yoffset);
				}
			} else {
				yoffset = this.canvasHeight;
			}
			this.yoffset = yoffset;

			if ($.isArray(options.get('colorMap'))) {
				this.colorMapByIndex = options.get('colorMap');
				this.colorMapByValue = null;
			} else {
				this.colorMapByIndex = null;
				this.colorMapByValue = options.get('colorMap');
				if (this.colorMapByValue && this.colorMapByValue.get === undefined) {
					this.colorMapByValue = new RangeMap(this.colorMapByValue);
				}
			}

			this.range = range;
		},

		getRegion: function (el, x, y) {
			var result = Math.floor(x / this.totalBarWidth);
			return (result < 0 || result >= this.values.length) ? undefined : result;
		},

		getCurrentRegionFields: function () {
			var currentRegion = this.currentRegion,
				values = ensureArray(this.values[currentRegion]),
				result = [],
				value, i;
			for (i = values.length; i--;) {
				value = values[i];
				result.push({
					isNull: value === null,
					value: value,
					color: this.calcColor(i, value, currentRegion),
					offset: currentRegion
				});
			}
			return result;
		},

		calcColor: function (stacknum, value, valuenum) {
			var colorMapByIndex = this.colorMapByIndex,
				colorMapByValue = this.colorMapByValue,
				options = this.options,
				color, newColor;
			if (this.stacked) {
				color = options.get('stackedBarColor');
			} else {
				color = (value < 0) ? options.get('negBarColor') : options.get('barColor');
			}
			if (value === 0 && options.get('zeroColor') !== undefined) {
				color = options.get('zeroColor');
			}
			if (colorMapByValue && (newColor = colorMapByValue.get(value))) {
				color = newColor;
			} else if (colorMapByIndex && colorMapByIndex.length > valuenum) {
				color = colorMapByIndex[valuenum];
			}
			return $.isArray(color) ? color[stacknum % color.length] : color;
		},

		/**
		* Render bar(s) for a region
		*/
		renderRegion: function (valuenum, highlight) {
			var vals = this.values[valuenum],
				options = this.options,
				xaxisOffset = this.xaxisOffset,
				result = [],
				range = this.range,
				stacked = this.stacked,
				target = this.target,
				x = valuenum * this.totalBarWidth,
				canvasHeightEf = this.canvasHeightEf,
				yoffset = this.yoffset,
				y, height, color, isNull, yoffsetNeg, i, valcount, val, minPlotted, allMin;

			vals = $.isArray(vals) ? vals : [vals];
			valcount = vals.length;
			val = vals[0];
			isNull = all(null, vals);
			allMin = all(xaxisOffset, vals, true);

			if (isNull) {
				if (options.get('nullColor')) {
					color = highlight ? options.get('nullColor') : this.calcHighlightColor(options.get('nullColor'), options);
					y = (yoffset > 0) ? yoffset - 1 : yoffset;
					return target.drawRect(x, y, this.barWidth - 1, 0, color, color);
				} else {
					return undefined;
				}
			}
			yoffsetNeg = yoffset;
			for (i = 0; i < valcount; i++) {
				val = vals[i];

				if (stacked && val === xaxisOffset) {
					if (!allMin || minPlotted) {
						continue;
					}
					minPlotted = true;
				}

				if (range > 0) {
					height = Math.floor(canvasHeightEf * ((Math.abs(val - xaxisOffset) / range))) + 1;
				} else {
					height = 1;
				}
				if (val < xaxisOffset || (val === xaxisOffset && yoffset === 0)) {
					y = yoffsetNeg;
					yoffsetNeg += height;
				} else {
					y = yoffset - height;
					yoffset -= height;
				}
				color = this.calcColor(i, val, valuenum);
				if (highlight) {
					color = this.calcHighlightColor(color, options);
				}
				result.push(target.drawRect(x, y, this.barWidth - 1, height - 1, color, color));
			}
			if (result.length === 1) {
				return result[0];
			}
			return result;
		}
	});

	/**
	* Tristate charts
	*/
	$.fn.sparkline.tristate = tristate = createClass($.fn.sparkline._base, barHighlightMixin, {
		type: 'tristate',

		init: function (el, values, options, width, height) {
			var barWidth = parseInt(options.get('barWidth'), 10),
				barSpacing = parseInt(options.get('barSpacing'), 10);
			tristate._super.init.call(this, el, values, options, width, height);

			this.regionShapes = {};
			this.barWidth = barWidth;
			this.barSpacing = barSpacing;
			this.totalBarWidth = barWidth + barSpacing;
			this.values = $.map(values, Number);
			this.width = width = (values.length * barWidth) + ((values.length - 1) * barSpacing);

			if ($.isArray(options.get('colorMap'))) {
				this.colorMapByIndex = options.get('colorMap');
				this.colorMapByValue = null;
			} else {
				this.colorMapByIndex = null;
				this.colorMapByValue = options.get('colorMap');
				if (this.colorMapByValue && this.colorMapByValue.get === undefined) {
					this.colorMapByValue = new RangeMap(this.colorMapByValue);
				}
			}
			this.initTarget();
		},

		getRegion: function (el, x, y) {
			return Math.floor(x / this.totalBarWidth);
		},

		getCurrentRegionFields: function () {
			var currentRegion = this.currentRegion;
			return {
				isNull: this.values[currentRegion] === undefined,
				value: this.values[currentRegion],
				color: this.calcColor(this.values[currentRegion], currentRegion),
				offset: currentRegion
			};
		},

		calcColor: function (value, valuenum) {
			var values = this.values,
				options = this.options,
				colorMapByIndex = this.colorMapByIndex,
				colorMapByValue = this.colorMapByValue,
				color, newColor;

			if (colorMapByValue && (newColor = colorMapByValue.get(value))) {
				color = newColor;
			} else if (colorMapByIndex && colorMapByIndex.length > valuenum) {
				color = colorMapByIndex[valuenum];
			} else if (values[valuenum] < 0) {
				color = options.get('negBarColor');
			} else if (values[valuenum] > 0) {
				color = options.get('posBarColor');
			} else {
				color = options.get('zeroBarColor');
			}
			return color;
		},

		renderRegion: function (valuenum, highlight) {
			var values = this.values,
				options = this.options,
				target = this.target,
				canvasHeight, height, halfHeight,
				x, y, color;

			canvasHeight = target.pixelHeight;
			halfHeight = Math.round(canvasHeight / 2);

			x = valuenum * this.totalBarWidth;
			if (values[valuenum] < 0) {
				y = halfHeight;
				height = halfHeight - 1;
			} else if (values[valuenum] > 0) {
				y = 0;
				height = halfHeight - 1;
			} else {
				y = halfHeight - 1;
				height = 2;
			}
			color = this.calcColor(values[valuenum], valuenum);
			if (color === null) {
				return;
			}
			if (highlight) {
				color = this.calcHighlightColor(color, options);
			}
			return target.drawRect(x, y, this.barWidth - 1, height - 1, color, color);
		}
	});

	/**
	* Discrete charts
	*/
	$.fn.sparkline.discrete = discrete = createClass($.fn.sparkline._base, barHighlightMixin, {
		type: 'discrete',

		init: function (el, values, options, width, height) {
			discrete._super.init.call(this, el, values, options, width, height);

			this.regionShapes = {};
			this.values = values = $.map(values, Number);
			this.min = Math.min.apply(Math, values);
			this.max = Math.max.apply(Math, values);
			this.range = this.max - this.min;
			this.width = width = options.get('width') === 'auto' ? values.length * 2 : this.width;
			this.interval = Math.floor(width / values.length);
			this.itemWidth = width / values.length;
			if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.min)) {
				this.min = options.get('chartRangeMin');
			}
			if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.max)) {
				this.max = options.get('chartRangeMax');
			}
			this.initTarget();
			if (this.target) {
				this.lineHeight = options.get('lineHeight') === 'auto' ? Math.round(this.canvasHeight * 0.3) : options.get('lineHeight');
			}
		},

		getRegion: function (el, x, y) {
			return Math.floor(x / this.itemWidth);
		},

		getCurrentRegionFields: function () {
			var currentRegion = this.currentRegion;
			return {
				isNull: this.values[currentRegion] === undefined,
				value: this.values[currentRegion],
				offset: currentRegion
			};
		},

		renderRegion: function (valuenum, highlight) {
			var values = this.values,
				options = this.options,
				min = this.min,
				max = this.max,
				range = this.range,
				interval = this.interval,
				target = this.target,
				canvasHeight = this.canvasHeight,
				lineHeight = this.lineHeight,
				pheight = canvasHeight - lineHeight,
				ytop, val, color, x;

			val = clipval(values[valuenum], min, max);
			x = valuenum * interval;
			ytop = Math.round(pheight - pheight * ((val - min) / range));
			color = (options.get('thresholdColor') && val < options.get('thresholdValue')) ? options.get('thresholdColor') : options.get('lineColor');
			if (highlight) {
				color = this.calcHighlightColor(color, options);
			}
			return target.drawLine(x, ytop, x, ytop + lineHeight, color);
		}
	});

	/**
	* Bullet charts
	*/
	$.fn.sparkline.bullet = bullet = createClass($.fn.sparkline._base, {
		type: 'bullet',

		init: function (el, values, options, width, height) {
			var min, max, vals;
			bullet._super.init.call(this, el, values, options, width, height);

			// values: target, performance, range1, range2, range3
			this.values = values = normalizeValues(values);
			// target or performance could be null
			vals = values.slice();
			vals[0] = vals[0] === null ? vals[2] : vals[0];
			vals[1] = values[1] === null ? vals[2] : vals[1];
			min = Math.min.apply(Math, values);
			max = Math.max.apply(Math, values);
			if (options.get('base') === undefined) {
				min = min < 0 ? min : 0;
			} else {
				min = options.get('base');
			}
			this.min = min;
			this.max = max;
			this.range = max - min;
			this.shapes = {};
			this.valueShapes = {};
			this.regiondata = {};
			this.width = width = options.get('width') === 'auto' ? '4.0em' : width;
			this.target = this.$el.simpledraw(width, height, options.get('composite'));
			if (!values.length) {
				this.disabled = true;
			}
			this.initTarget();
		},

		getRegion: function (el, x, y) {
			var shapeid = this.target.getShapeAt(el, x, y);
			return (shapeid !== undefined && this.shapes[shapeid] !== undefined) ? this.shapes[shapeid] : undefined;
		},

		getCurrentRegionFields: function () {
			var currentRegion = this.currentRegion;
			return {
				fieldkey: currentRegion.substr(0, 1),
				value: this.values[currentRegion.substr(1)],
				region: currentRegion
			};
		},

		changeHighlight: function (highlight) {
			var currentRegion = this.currentRegion,
				shapeid = this.valueShapes[currentRegion],
				shape;
			delete this.shapes[shapeid];
			switch (currentRegion.substr(0, 1)) {
				case 'r':
					shape = this.renderRange(currentRegion.substr(1), highlight);
					break;
				case 'p':
					shape = this.renderPerformance(highlight);
					break;
				case 't':
					shape = this.renderTarget(highlight);
					break;
			}
			this.valueShapes[currentRegion] = shape.id;
			this.shapes[shape.id] = currentRegion;
			this.target.replaceWithShape(shapeid, shape);
		},

		renderRange: function (rn, highlight) {
			var rangeval = this.values[rn],
				rangewidth = Math.round(this.canvasWidth * ((rangeval - this.min) / this.range)),
				color = this.options.get('rangeColors')[rn - 2];
			if (highlight) {
				color = this.calcHighlightColor(color, this.options);
			}
			return this.target.drawRect(0, 0, rangewidth - 1, this.canvasHeight - 1, color, color);
		},

		renderPerformance: function (highlight) {
			var perfval = this.values[1],
				perfwidth = Math.round(this.canvasWidth * ((perfval - this.min) / this.range)),
				color = this.options.get('performanceColor');
			if (highlight) {
				color = this.calcHighlightColor(color, this.options);
			}
			return this.target.drawRect(0, Math.round(this.canvasHeight * 0.3), perfwidth - 1,
				Math.round(this.canvasHeight * 0.4) - 1, color, color);
		},

		renderTarget: function (highlight) {
			var targetval = this.values[0],
				x = Math.round(this.canvasWidth * ((targetval - this.min) / this.range) - (this.options.get('targetWidth') / 2)),
				targettop = Math.round(this.canvasHeight * 0.10),
				targetheight = this.canvasHeight - (targettop * 2),
				color = this.options.get('targetColor');
			if (highlight) {
				color = this.calcHighlightColor(color, this.options);
			}
			return this.target.drawRect(x, targettop, this.options.get('targetWidth') - 1, targetheight - 1, color, color);
		},

		render: function () {
			var vlen = this.values.length,
				target = this.target,
				i, shape;
			if (!bullet._super.render.call(this)) {
				return;
			}
			for (i = 2; i < vlen; i++) {
				shape = this.renderRange(i).append();
				this.shapes[shape.id] = 'r' + i;
				this.valueShapes['r' + i] = shape.id;
			}
			if (this.values[1] !== null) {
				shape = this.renderPerformance().append();
				this.shapes[shape.id] = 'p1';
				this.valueShapes.p1 = shape.id;
			}
			if (this.values[0] !== null) {
				shape = this.renderTarget().append();
				this.shapes[shape.id] = 't0';
				this.valueShapes.t0 = shape.id;
			}
			target.render();
		}
	});

	/**
	* Pie charts
	*/
	$.fn.sparkline.pie = pie = createClass($.fn.sparkline._base, {
		type: 'pie',

		init: function (el, values, options, width, height) {
			var total = 0, i;

			pie._super.init.call(this, el, values, options, width, height);

			this.shapes = {}; // map shape ids to value offsets
			this.valueShapes = {}; // maps value offsets to shape ids
			this.values = values = $.map(values, Number);

			if (options.get('width') === 'auto') {
				this.width = this.height;
			}

			if (values.length > 0) {
				for (i = values.length; i--;) {
					total += values[i];
				}
			}
			this.total = total;
			this.initTarget();
			this.radius = Math.floor(Math.min(this.canvasWidth, this.canvasHeight) / 2);
		},

		getRegion: function (el, x, y) {
			var shapeid = this.target.getShapeAt(el, x, y);
			return (shapeid !== undefined && this.shapes[shapeid] !== undefined) ? this.shapes[shapeid] : undefined;
		},

		getCurrentRegionFields: function () {
			var currentRegion = this.currentRegion;
			return {
				isNull: this.values[currentRegion] === undefined,
				value: this.values[currentRegion],
				percent: this.values[currentRegion] / this.total * 100,
				color: this.options.get('sliceColors')[currentRegion % this.options.get('sliceColors').length],
				offset: currentRegion
			};
		},

		changeHighlight: function (highlight) {
			var currentRegion = this.currentRegion,
				newslice = this.renderSlice(currentRegion, highlight),
				shapeid = this.valueShapes[currentRegion];
			delete this.shapes[shapeid];
			this.target.replaceWithShape(shapeid, newslice);
			this.valueShapes[currentRegion] = newslice.id;
			this.shapes[newslice.id] = currentRegion;
		},

		renderSlice: function (valuenum, highlight) {
			var target = this.target,
				options = this.options,
				radius = this.radius,
				borderWidth = options.get('borderWidth'),
				offset = options.get('offset'),
				circle = 2 * Math.PI,
				values = this.values,
				total = this.total,
				next = offset ? (2*Math.PI)*(offset/360) : 0,
				start, end, i, vlen, color;

			vlen = values.length;
			for (i = 0; i < vlen; i++) {
				start = next;
				end = next;
				if (total > 0) {  // avoid divide by zero
					end = next + (circle * (values[i] / total));
				}
				if (valuenum === i) {
					color = options.get('sliceColors')[i % options.get('sliceColors').length];
					if (highlight) {
						color = this.calcHighlightColor(color, options);
					}

					return target.drawPieSlice(radius, radius, radius - borderWidth, start, end, undefined, color);
				}
				next = end;
			}
		},

		render: function () {
			var target = this.target,
				values = this.values,
				options = this.options,
				radius = this.radius,
				borderWidth = options.get('borderWidth'),
				shape, i;

			if (!pie._super.render.call(this)) {
				return;
			}
			if (borderWidth) {
				target.drawCircle(radius, radius, Math.floor(radius - (borderWidth / 2)),
					options.get('borderColor'), undefined, borderWidth).append();
			}
			for (i = values.length; i--;) {
				if (values[i]) { // don't render zero values
					shape = this.renderSlice(i).append();
					this.valueShapes[i] = shape.id; // store just the shapeid
					this.shapes[shape.id] = i;
				}
			}
			target.render();
		}
	});

	/**
	* Box plots
	*/
	$.fn.sparkline.box = box = createClass($.fn.sparkline._base, {
		type: 'box',

		init: function (el, values, options, width, height) {
			box._super.init.call(this, el, values, options, width, height);
			this.values = $.map(values, Number);
			this.width = options.get('width') === 'auto' ? '4.0em' : width;
			this.initTarget();
			if (!this.values.length) {
				this.disabled = 1;
			}
		},

		/**
		* Simulate a single region
		*/
		getRegion: function () {
			return 1;
		},

		getCurrentRegionFields: function () {
			var result = [
				{ field: 'lq', value: this.quartiles[0] },
				{ field: 'med', value: this.quartiles[1] },
				{ field: 'uq', value: this.quartiles[2] }
			];
			if (this.loutlier !== undefined) {
				result.push({ field: 'lo', value: this.loutlier});
			}
			if (this.routlier !== undefined) {
				result.push({ field: 'ro', value: this.routlier});
			}
			if (this.lwhisker !== undefined) {
				result.push({ field: 'lw', value: this.lwhisker});
			}
			if (this.rwhisker !== undefined) {
				result.push({ field: 'rw', value: this.rwhisker});
			}
			return result;
		},

		render: function () {
			var target = this.target,
				values = this.values,
				vlen = values.length,
				options = this.options,
				canvasWidth = this.canvasWidth,
				canvasHeight = this.canvasHeight,
				minValue = options.get('chartRangeMin') === undefined ? Math.min.apply(Math, values) : options.get('chartRangeMin'),
				maxValue = options.get('chartRangeMax') === undefined ? Math.max.apply(Math, values) : options.get('chartRangeMax'),
				canvasLeft = 0,
				lwhisker, loutlier, iqr, q1, q2, q3, rwhisker, routlier, i,
				size, unitSize;

			if (!box._super.render.call(this)) {
				return;
			}

			if (options.get('raw')) {
				if (options.get('showOutliers') && values.length > 5) {
					loutlier = values[0];
					lwhisker = values[1];
					q1 = values[2];
					q2 = values[3];
					q3 = values[4];
					rwhisker = values[5];
					routlier = values[6];
				} else {
					lwhisker = values[0];
					q1 = values[1];
					q2 = values[2];
					q3 = values[3];
					rwhisker = values[4];
				}
			} else {
				values.sort(function (a, b) { return a - b; });
				q1 = quartile(values, 1);
				q2 = quartile(values, 2);
				q3 = quartile(values, 3);
				iqr = q3 - q1;
				if (options.get('showOutliers')) {
					lwhisker = rwhisker = undefined;
					for (i = 0; i < vlen; i++) {
						if (lwhisker === undefined && values[i] > q1 - (iqr * options.get('outlierIQR'))) {
							lwhisker = values[i];
						}
						if (values[i] < q3 + (iqr * options.get('outlierIQR'))) {
							rwhisker = values[i];
						}
					}
					loutlier = values[0];
					routlier = values[vlen - 1];
				} else {
					lwhisker = values[0];
					rwhisker = values[vlen - 1];
				}
			}
			this.quartiles = [q1, q2, q3];
			this.lwhisker = lwhisker;
			this.rwhisker = rwhisker;
			this.loutlier = loutlier;
			this.routlier = routlier;

			unitSize = canvasWidth / (maxValue - minValue + 1);
			if (options.get('showOutliers')) {
				canvasLeft = Math.ceil(options.get('spotRadius'));
				canvasWidth -= 2 * Math.ceil(options.get('spotRadius'));
				unitSize = canvasWidth / (maxValue - minValue + 1);
				if (loutlier < lwhisker) {
					target.drawCircle((loutlier - minValue) * unitSize + canvasLeft,
						canvasHeight / 2,
						options.get('spotRadius'),
						options.get('outlierLineColor'),
						options.get('outlierFillColor')).append();
				}
				if (routlier > rwhisker) {
					target.drawCircle((routlier - minValue) * unitSize + canvasLeft,
						canvasHeight / 2,
						options.get('spotRadius'),
						options.get('outlierLineColor'),
						options.get('outlierFillColor')).append();
				}
			}

			// box
			target.drawRect(
				Math.round((q1 - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight * 0.1),
				Math.round((q3 - q1) * unitSize),
				Math.round(canvasHeight * 0.8),
				options.get('boxLineColor'),
				options.get('boxFillColor')).append();
			// left whisker
			target.drawLine(
				Math.round((lwhisker - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight / 2),
				Math.round((q1 - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight / 2),
				options.get('lineColor')).append();
			target.drawLine(
				Math.round((lwhisker - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight / 4),
				Math.round((lwhisker - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight - canvasHeight / 4),
				options.get('whiskerColor')).append();
			// right whisker
			target.drawLine(Math.round((rwhisker - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight / 2),
				Math.round((q3 - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight / 2),
				options.get('lineColor')).append();
			target.drawLine(
				Math.round((rwhisker - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight / 4),
				Math.round((rwhisker - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight - canvasHeight / 4),
				options.get('whiskerColor')).append();
			// median line
			target.drawLine(
				Math.round((q2 - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight * 0.1),
				Math.round((q2 - minValue) * unitSize + canvasLeft),
				Math.round(canvasHeight * 0.9),
				options.get('medianColor')).append();
			if (options.get('target')) {
				size = Math.ceil(options.get('spotRadius'));
				target.drawLine(
					Math.round((options.get('target') - minValue) * unitSize + canvasLeft),
					Math.round((canvasHeight / 2) - size),
					Math.round((options.get('target') - minValue) * unitSize + canvasLeft),
					Math.round((canvasHeight / 2) + size),
					options.get('targetColor')).append();
				target.drawLine(
					Math.round((options.get('target') - minValue) * unitSize + canvasLeft - size),
					Math.round(canvasHeight / 2),
					Math.round((options.get('target') - minValue) * unitSize + canvasLeft + size),
					Math.round(canvasHeight / 2),
					options.get('targetColor')).append();
			}
			target.render();
		}
	});

	// Setup a very simple "virtual canvas" to make drawing the few shapes we need easier
	// This is accessible as $(foo).simpledraw()

	VShape = createClass({
		init: function (target, id, type, args) {
			this.target = target;
			this.id = id;
			this.type = type;
			this.args = args;
		},
		append: function () {
			this.target.appendShape(this);
			return this;
		}
	});

	VCanvas_base = createClass({
		_pxregex: /(\d+)(px)?\s*$/i,

		init: function (width, height, target) {
			if (!width) {
				return;
			}
			this.width = width;
			this.height = height;
			this.target = target;
			this.lastShapeId = null;
			if (target[0]) {
				target = target[0];
			}
			$.data(target, '_jqs_vcanvas', this);
		},

		drawLine: function (x1, y1, x2, y2, lineColor, lineWidth) {
			return this.drawShape([[x1, y1], [x2, y2]], lineColor, lineWidth);
		},

		drawShape: function (path, lineColor, fillColor, lineWidth) {
			return this._genShape('Shape', [path, lineColor, fillColor, lineWidth]);
		},

		drawCircle: function (x, y, radius, lineColor, fillColor, lineWidth) {
			return this._genShape('Circle', [x, y, radius, lineColor, fillColor, lineWidth]);
		},

		drawPieSlice: function (x, y, radius, startAngle, endAngle, lineColor, fillColor) {
			return this._genShape('PieSlice', [x, y, radius, startAngle, endAngle, lineColor, fillColor]);
		},

		drawRect: function (x, y, width, height, lineColor, fillColor) {
			return this._genShape('Rect', [x, y, width, height, lineColor, fillColor]);
		},

		getElement: function () {
			return this.canvas;
		},

		/**
		* Return the most recently inserted shape id
		*/
		getLastShapeId: function () {
			return this.lastShapeId;
		},

		/**
		* Clear and reset the canvas
		*/
		reset: function () {
			alert('reset not implemented');
		},

		_insert: function (el, target) {
			$(target).html(el);
		},

		/**
		* Calculate the pixel dimensions of the canvas
		*/
		_calculatePixelDims: function (width, height, canvas) {
			// XXX This should probably be a configurable option
			var match;
			match = this._pxregex.exec(height);
			if (match) {
				this.pixelHeight = match[1];
			} else {
				this.pixelHeight = $(canvas).height();
			}
			match = this._pxregex.exec(width);
			if (match) {
				this.pixelWidth = match[1];
			} else {
				this.pixelWidth = $(canvas).width();
			}
		},

		/**
		* Generate a shape object and id for later rendering
		*/
		_genShape: function (shapetype, shapeargs) {
			var id = shapeCount++;
			shapeargs.unshift(id);
			return new VShape(this, id, shapetype, shapeargs);
		},

		/**
		* Add a shape to the end of the render queue
		*/
		appendShape: function (shape) {
			alert('appendShape not implemented');
		},

		/**
		* Replace one shape with another
		*/
		replaceWithShape: function (shapeid, shape) {
			alert('replaceWithShape not implemented');
		},

		/**
		* Insert one shape after another in the render queue
		*/
		insertAfterShape: function (shapeid, shape) {
			alert('insertAfterShape not implemented');
		},

		/**
		* Remove a shape from the queue
		*/
		removeShapeId: function (shapeid) {
			alert('removeShapeId not implemented');
		},

		/**
		* Find a shape at the specified x/y co-ordinates
		*/
		getShapeAt: function (el, x, y) {
			alert('getShapeAt not implemented');
		},

		/**
		* Render all queued shapes onto the canvas
		*/
		render: function () {
			alert('render not implemented');
		}
	});

	VCanvas_canvas = createClass(VCanvas_base, {
		init: function (width, height, target, interact) {
			VCanvas_canvas._super.init.call(this, width, height, target);
			this.canvas = document.createElement('canvas');
			if (target[0]) {
				target = target[0];
			}
			$.data(target, '_jqs_vcanvas', this);
			$(this.canvas).css({ display: 'inline-block', width: width, height: height, verticalAlign: 'top' });
			this._insert(this.canvas, target);
			this._calculatePixelDims(width, height, this.canvas);
			this.canvas.width = this.pixelWidth;
			this.canvas.height = this.pixelHeight;
			this.interact = interact;
			this.shapes = {};
			this.shapeseq = [];
			this.currentTargetShapeId = undefined;
			$(this.canvas).css({width: this.pixelWidth, height: this.pixelHeight});
		},

		_getContext: function (lineColor, fillColor, lineWidth) {
			var context = this.canvas.getContext('2d');
			if (lineColor !== undefined) {
				context.strokeStyle = lineColor;
			}
			context.lineWidth = lineWidth === undefined ? 1 : lineWidth;
			if (fillColor !== undefined) {
				context.fillStyle = fillColor;
			}
			return context;
		},

		reset: function () {
			var context = this._getContext();
			context.clearRect(0, 0, this.pixelWidth, this.pixelHeight);
			this.shapes = {};
			this.shapeseq = [];
			this.currentTargetShapeId = undefined;
		},

		_drawShape: function (shapeid, path, lineColor, fillColor, lineWidth) {
			var context = this._getContext(lineColor, fillColor, lineWidth),
				i, plen;
			context.beginPath();
			context.moveTo(path[0][0] + 0.5, path[0][1] + 0.5);
			for (i = 1, plen = path.length; i < plen; i++) {
				context.lineTo(path[i][0] + 0.5, path[i][1] + 0.5); // the 0.5 offset gives us crisp pixel-width lines
			}
			if (lineColor !== undefined) {
				context.stroke();
			}
			if (fillColor !== undefined) {
				context.fill();
			}
			if (this.targetX !== undefined && this.targetY !== undefined &&
				context.isPointInPath(this.targetX, this.targetY)) {
				this.currentTargetShapeId = shapeid;
			}
		},

		_drawCircle: function (shapeid, x, y, radius, lineColor, fillColor, lineWidth) {
			var context = this._getContext(lineColor, fillColor, lineWidth);
			context.beginPath();
			context.arc(x, y, radius, 0, 2 * Math.PI, false);
			if (this.targetX !== undefined && this.targetY !== undefined &&
				context.isPointInPath(this.targetX, this.targetY)) {
				this.currentTargetShapeId = shapeid;
			}
			if (lineColor !== undefined) {
				context.stroke();
			}
			if (fillColor !== undefined) {
				context.fill();
			}
		},

		_drawPieSlice: function (shapeid, x, y, radius, startAngle, endAngle, lineColor, fillColor) {
			var context = this._getContext(lineColor, fillColor);
			context.beginPath();
			context.moveTo(x, y);
			context.arc(x, y, radius, startAngle, endAngle, false);
			context.lineTo(x, y);
			context.closePath();
			if (lineColor !== undefined) {
				context.stroke();
			}
			if (fillColor) {
				context.fill();
			}
			if (this.targetX !== undefined && this.targetY !== undefined &&
				context.isPointInPath(this.targetX, this.targetY)) {
				this.currentTargetShapeId = shapeid;
			}
		},

		_drawRect: function (shapeid, x, y, width, height, lineColor, fillColor) {
			return this._drawShape(shapeid, [[x, y], [x + width, y], [x + width, y + height], [x, y + height], [x, y]], lineColor, fillColor);
		},

		appendShape: function (shape) {
			this.shapes[shape.id] = shape;
			this.shapeseq.push(shape.id);
			this.lastShapeId = shape.id;
			return shape.id;
		},

		replaceWithShape: function (shapeid, shape) {
			var shapeseq = this.shapeseq,
				i;
			this.shapes[shape.id] = shape;
			for (i = shapeseq.length; i--;) {
				if (shapeseq[i] == shapeid) {
					shapeseq[i] = shape.id;
				}
			}
			delete this.shapes[shapeid];
		},

		replaceWithShapes: function (shapeids, shapes) {
			var shapeseq = this.shapeseq,
				shapemap = {},
				sid, i, first;

			for (i = shapeids.length; i--;) {
				shapemap[shapeids[i]] = true;
			}
			for (i = shapeseq.length; i--;) {
				sid = shapeseq[i];
				if (shapemap[sid]) {
					shapeseq.splice(i, 1);
					delete this.shapes[sid];
					first = i;
				}
			}
			for (i = shapes.length; i--;) {
				shapeseq.splice(first, 0, shapes[i].id);
				this.shapes[shapes[i].id] = shapes[i];
			}

		},

		insertAfterShape: function (shapeid, shape) {
			var shapeseq = this.shapeseq,
				i;
			for (i = shapeseq.length; i--;) {
				if (shapeseq[i] === shapeid) {
					shapeseq.splice(i + 1, 0, shape.id);
					this.shapes[shape.id] = shape;
					return;
				}
			}
		},

		removeShapeId: function (shapeid) {
			var shapeseq = this.shapeseq,
				i;
			for (i = shapeseq.length; i--;) {
				if (shapeseq[i] === shapeid) {
					shapeseq.splice(i, 1);
					break;
				}
			}
			delete this.shapes[shapeid];
		},

		getShapeAt: function (el, x, y) {
			this.targetX = x;
			this.targetY = y;
			this.render();
			return this.currentTargetShapeId;
		},

		render: function () {
			var shapeseq = this.shapeseq,
				shapes = this.shapes,
				shapeCount = shapeseq.length,
				context = this._getContext(),
				shapeid, shape, i;
			context.clearRect(0, 0, this.pixelWidth, this.pixelHeight);
			for (i = 0; i < shapeCount; i++) {
				shapeid = shapeseq[i];
				shape = shapes[shapeid];
				this['_draw' + shape.type].apply(this, shape.args);
			}
			if (!this.interact) {
				// not interactive so no need to keep the shapes array
				this.shapes = {};
				this.shapeseq = [];
			}
		}

	});

	VCanvas_vml = createClass(VCanvas_base, {
		init: function (width, height, target) {
			var groupel;
			VCanvas_vml._super.init.call(this, width, height, target);
			if (target[0]) {
				target = target[0];
			}
			$.data(target, '_jqs_vcanvas', this);
			this.canvas = document.createElement('span');
			$(this.canvas).css({ display: 'inline-block', position: 'relative', overflow: 'hidden', width: width, height: height, margin: '0px', padding: '0px', verticalAlign: 'top'});
			this._insert(this.canvas, target);
			this._calculatePixelDims(width, height, this.canvas);
			this.canvas.width = this.pixelWidth;
			this.canvas.height = this.pixelHeight;
			groupel = '<v:group coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '"' +
					' style="position:absolute;top:0;left:0;width:' + this.pixelWidth + 'px;height=' + this.pixelHeight + 'px;"></v:group>';
			this.canvas.insertAdjacentHTML('beforeEnd', groupel);
			this.group = $(this.canvas).children()[0];
			this.rendered = false;
			this.prerender = '';
		},

		_drawShape: function (shapeid, path, lineColor, fillColor, lineWidth) {
			var vpath = [],
				initial, stroke, fill, closed, vel, plen, i;
			for (i = 0, plen = path.length; i < plen; i++) {
				vpath[i] = '' + (path[i][0]) + ',' + (path[i][1]);
			}
			initial = vpath.splice(0, 1);
			lineWidth = lineWidth === undefined ? 1 : lineWidth;
			stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="' + lineWidth + 'px" strokeColor="' + lineColor + '" ';
			fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
			closed = vpath[0] === vpath[vpath.length - 1] ? 'x ' : '';
			vel = '<v:shape coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '" ' +
				' id="jqsshape' + shapeid + '" ' +
				stroke +
				fill +
				' style="position:absolute;left:0px;top:0px;height:' + this.pixelHeight + 'px;width:' + this.pixelWidth + 'px;padding:0px;margin:0px;" ' +
				' path="m ' + initial + ' l ' + vpath.join(', ') + ' ' + closed + 'e">' +
				' </v:shape>';
			return vel;
		},

		_drawCircle: function (shapeid, x, y, radius, lineColor, fillColor, lineWidth) {
			var stroke, fill, vel;
			x -= radius;
			y -= radius;
			stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="' + lineWidth + 'px" strokeColor="' + lineColor + '" ';
			fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
			vel = '<v:oval ' +
				' id="jqsshape' + shapeid + '" ' +
				stroke +
				fill +
				' style="position:absolute;top:' + y + 'px; left:' + x + 'px; width:' + (radius * 2) + 'px; height:' + (radius * 2) + 'px"></v:oval>';
			return vel;

		},

		_drawPieSlice: function (shapeid, x, y, radius, startAngle, endAngle, lineColor, fillColor) {
			var vpath, startx, starty, endx, endy, stroke, fill, vel;
			if (startAngle === endAngle) {
				return '';  // VML seems to have problem when start angle equals end angle.
			}
			if ((endAngle - startAngle) === (2 * Math.PI)) {
				startAngle = 0.0;  // VML seems to have a problem when drawing a full circle that doesn't start 0
				endAngle = (2 * Math.PI);
			}

			startx = x + Math.round(Math.cos(startAngle) * radius);
			starty = y + Math.round(Math.sin(startAngle) * radius);
			endx = x + Math.round(Math.cos(endAngle) * radius);
			endy = y + Math.round(Math.sin(endAngle) * radius);

			if (startx === endx && starty === endy) {
				if ((endAngle - startAngle) < Math.PI) {
					// Prevent very small slices from being mistaken as a whole pie
					return '';
				}
				// essentially going to be the entire circle, so ignore startAngle
				startx = endx = x + radius;
				starty = endy = y;
			}

			if (startx === endx && starty === endy && (endAngle - startAngle) < Math.PI) {
				return '';
			}

			vpath = [x - radius, y - radius, x + radius, y + radius, startx, starty, endx, endy];
			stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="1px" strokeColor="' + lineColor + '" ';
			fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
			vel = '<v:shape coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '" ' +
				' id="jqsshape' + shapeid + '" ' +
				stroke +
				fill +
				' style="position:absolute;left:0px;top:0px;height:' + this.pixelHeight + 'px;width:' + this.pixelWidth + 'px;padding:0px;margin:0px;" ' +
				' path="m ' + x + ',' + y + ' wa ' + vpath.join(', ') + ' x e">' +
				' </v:shape>';
			return vel;
		},

		_drawRect: function (shapeid, x, y, width, height, lineColor, fillColor) {
			return this._drawShape(shapeid, [[x, y], [x, y + height], [x + width, y + height], [x + width, y], [x, y]], lineColor, fillColor);
		},

		reset: function () {
			this.group.innerHTML = '';
		},

		appendShape: function (shape) {
			var vel = this['_draw' + shape.type].apply(this, shape.args);
			if (this.rendered) {
				this.group.insertAdjacentHTML('beforeEnd', vel);
			} else {
				this.prerender += vel;
			}
			this.lastShapeId = shape.id;
			return shape.id;
		},

		replaceWithShape: function (shapeid, shape) {
			var existing = $('#jqsshape' + shapeid),
				vel = this['_draw' + shape.type].apply(this, shape.args);
			existing[0].outerHTML = vel;
		},

		replaceWithShapes: function (shapeids, shapes) {
			// replace the first shapeid with all the new shapes then toast the remaining old shapes
			var existing = $('#jqsshape' + shapeids[0]),
				replace = '',
				slen = shapes.length,
				i;
			for (i = 0; i < slen; i++) {
				replace += this['_draw' + shapes[i].type].apply(this, shapes[i].args);
			}
			existing[0].outerHTML = replace;
			for (i = 1; i < shapeids.length; i++) {
				$('#jqsshape' + shapeids[i]).remove();
			}
		},

		insertAfterShape: function (shapeid, shape) {
			var existing = $('#jqsshape' + shapeid),
				vel = this['_draw' + shape.type].apply(this, shape.args);
			existing[0].insertAdjacentHTML('afterEnd', vel);
		},

		removeShapeId: function (shapeid) {
			var existing = $('#jqsshape' + shapeid);
			this.group.removeChild(existing[0]);
		},

		getShapeAt: function (el, x, y) {
			var shapeid = el.id.substr(8);
			return shapeid;
		},

		render: function () {
			if (!this.rendered) {
				// batch the intial render into a single repaint
				this.group.innerHTML = this.prerender;
				this.rendered = true;
			}
		}
	});

}))}(document, Math));
